Abstract: [Object] When press-bonding superposed curved glass plates together by a plurality of curved rolls, even if curvature of the curved glass changes, a preliminary bonding method and device of a laminated glass can cope with a variety of curvatures of the curved glass plate by an easy adjustment.

Abstract: [Task] A sheet material is cut in a predetermined closed loop shape. [Means for solving task] A cutting apparatus for a sheet material, comprises: an air table which is capable of ejecting or sucking air through a plurality of minute punching sections thereof; a template having at least one recess groove section in a predetermined closed loop shape mounted and fixed onto the air table and a punching section located at each of positions on the template which is coincident with a position of each of the punching sections of the air table; a cutter blade disposed on an upper position of the sheet material mounted on the template to cut the sheet material along the recess groove section of the template; and cutter blade driving means which is capable of moving and rotating the cutter blade in X, Y, and Z coordinate axes.

Abstract: [Object] When press-bonding superposed curved glass plates together by a plurality of curved rolls, even if curvature of the curved glass changes, a preliminary bonding method and device of a laminated glass can cope with a variety of curvatures of the curved glass plate by an easy adjustment.